# STC SA00274AT

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: John Jewell Aircraft Inc, United States
- Description: Installation of a Teledyne Continental model IO-550L engine and a McCauley model D3A34C402/90DFA-10 or a Hartzell model PHC-J3FY-1RF/F7691 propeller with associated spinner.
- Applied: October 19, 1992
- Status date: January 14, 2009
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A21](https://openairdocs.org/tcds/3A21)
- Certificate PDF: https://openairdocs.org/files/sha256/87/3e/873e64ccaefdc0ffffed23cbe6a48e8de89fe4621116694004ea9686862d87c1
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/08DCF526FBE1C04C8625755300543E02.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA00274AT

## ADs that name it (0)

None.

## Approved models (4)

- The Cessna Aircraft Company 210K ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company 210L ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company 210M ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company 210N ([TCDS 3A21](https://openairdocs.org/tcds/3A21))

## What the certificate says

The certificate is a scan without a text layer; open the PDF to read it.

## Every issue (2)

- January 14, 2009: Amended, Current. [certificate](https://openairdocs.org/files/sha256/87/3e/873e64ccaefdc0ffffed23cbe6a48e8de89fe4621116694004ea9686862d87c1)
- September 29, 2005: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/b7/df/b7df94f4f26d53537068e089aa94c7695b194a11af376a2420ca774af1c8efa3)

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